Answer:
The answer is: 3
Step-by-step explanation:
1. At the begining of the program we start by declairing the variables:
double x=1, double y=1 and int i=0.
2. The structure do...while is used to defined the loop. x<2.5 is the finalization condition of the loop. i is the counter of the loop.
y=x/2 is the first calculation
x=x+y is the second one. Here is where the values of the variable x changes.
a) for the first iteration, the values of y and x are shown below:
The variable x is minor to 2.5 so the loop will continue computing.
b) the second iteration, the values of y and x are shown below::
![y=0.5\\x=1.5\\y=\frac{1.5}{2}=0.75\\ x=1.5+0.75=2.25\\i=2](https://tex.z-dn.net/?f=y%3D0.5%5C%5Cx%3D1.5%5C%5Cy%3D%5Cfrac%7B1.5%7D%7B2%7D%3D0.75%5C%5C%20x%3D1.5%2B0.75%3D2.25%5C%5Ci%3D2)
The variable x is still minor to 2.5 so the loop will continue computing.
c) third iteration:
![y=0.75\\x=2.25\\y=\frac{2.25}{2} =1.1125\\x=2.25+1.125=3.375\\i=3](https://tex.z-dn.net/?f=y%3D0.75%5C%5Cx%3D2.25%5C%5Cy%3D%5Cfrac%7B2.25%7D%7B2%7D%20%3D1.1125%5C%5Cx%3D2.25%2B1.125%3D3.375%5C%5Ci%3D3)
The condition x<2.5 is not true so the loop ends.
3. System.out.print(i + " "); displays the value of the variable i wich value is 3.
Therefore the number 3 is display.